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Unread 01-12-2002, 03:12 PM   #1
CJeep
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1982 CJ8 
 
Join Date: Apr 2001
Location: Near Fairfield, CT
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MOPAR MPI spark plugs

I have yet to replace the plugs on my 258, which had the MPI kit on it when I bought it (thus my lack of written directions).

Anyone with the kit (but not the 4.0 heads) have any advice as to a good plug to use. More importantly, what gap are you using?

Any feedback pos. or neg. would be appriciated.

Thanks.

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Unread 01-13-2002, 03:11 PM   #2
hamyscj
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Location: Mount Joy, Pa
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Normal spark plugs are ususally replaced about every 30k. If your motor is in good shape (ie. not burning oil or coolant) maybe a platinum plug is the way to go. Bosch makes a good one. Personally, I just use regular plugs gapped to .050. Try them at .035 for a week, then go to .050. I think you will notice a difference in acceleration, especially on hills. Hope this helps, Hamy.
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